When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Some scientists believe the quasi-moon could have been created when a massive impact knocked a chunk of our own moon into ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

"When TESS launched, no one expected it to ever be capable of finding this kind of planet." When you purchase through links ...

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

Every time I see the moon in the sky, it makes me happy. Our natural satellite is so familiar it’s easy to take it for ...

Future Artemis astronauts may be able to explore rocks blasted from deep inside the Moon by an ancient giant impact.

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

NASA's Curiosity rover found pure sulfur crystals inside a rock after backing over and accidentally crushing it on May 30, ...